Turnover plate discharging valve of pipe chain conveyor

The utility model discloses a pipe chain conveyor flap discharging valve which comprises a pipe chain conveyor discharging valve body, a feeding port and a discharging port are formed in the two sides of the pipe chain conveyor discharging valve body respectively, rotating seats are installed on the two sides of the pipe chain conveyor discharging valve body respectively, and a rotating shaft is installed between the rotating seats. When discharging is needed at a discharging point, the air cylinder on the support is started, the air cylinder pushes the rotating rod to rotate, the rotating rod drives the rotating shaft to rotate, the rotating shaft further drives the discharging turning plate, the turning plate base and the connecting plate to move synchronously so that the valve can be opened for discharging, and after discharging is completed, the air cylinder drives the rotating shaft to rotate so as to drive the discharging turning plate to be closed. Due to the fact that the discharging turning plate is